Pathfinder 1E is built on the 3.5 version of D&D. The OGL at that time was too permissive so Paizo copies the system, made their tweaks and flavor changes, then released it.
Pathfinder 2E is a new system that doesn't rely on anything from D&D at all. The new OGL changes are not to target Paizo, but rather to target creators making modules or shows based on D&D 5e. They only changed the license for 5e.
Pathfinder 1E is built on the 3.5 version of D&D. The OGL at that time was too permissive so Paizo copies the system, made their tweaks and flavor changes, then released it.
Pathfinder 2E is a new system that doesn't rely on anything from D&D at all. The new OGL changes are not to target Paizo, but rather to target creators making modules or shows based on D&D 5e. They only changed the license for 5e.
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